Some sort of ratcheting hand drill

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Some sort of ratcheting hand drill

Home Forums Workshop Tools and Tooling Some sort of ratcheting hand drill

Viewing 22 posts - 1 through 22 (of 22 total)
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  • #187696
    Rainbows
    Participant
      @rainbows

      I had to shrink the image cause it was a bit big but I think everything can still be seen.

      Debating buying this tool. Looks like the child of a ratchet spanner and a drill press. Can anyone think of what its used for? Drilling is there for when needing slow speed I suppose and it allows the use of more tapered reamers in hand use.

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      #17692
      Rainbows
      Participant
        @rainbows
        #187697
        roy entwistle
        Participant
          @royentwistle24699

          They were used on the railways for drilling railway lines Also as an apprenice electrician we used them for drilling RSJs

          #187698
          terry simpson 1
          Participant
            @terrysimpson1

            Remember this tool, used as a portable hand drilling machine on equipment where access or lack of power was not available to use. Example:- On site drilling of railway fishplates, or by Boilermakers when drilling is needed in the confines of tanks and vessels.

            The drill is really incomplete as the bolt on or fixed backstop is needed to apply downward pressure to the drill point.

            I would suggest that the tool, apart from being a talking point, would have very limited uses in the home workshop.

            This is my opinion however, the brains of our fraternity have not yet replied to this query.

            #187700
            Bob Brown 1
            Participant
              @bobbrown1

              There is another part which bolts/clamps to the work piece and allows the top to sit in a centre hole (drilling post).

              There is one write up on its use here **LINK**

              Bob

              #187701
              Clive Foster
              Participant
                @clivefoster55965

                Old technology version of a mag base drill for producing relatively large holes on site. Basic method of use is to make a small pilot hole to locate the drill point then arrange some sort of screw jack or equivalent to put feed pressure on the pointed centre at the top. Then ratchet away whilst adjusting the screw to keep pressure on. Surprisingly fast in anything but the most obdurate materials as a sharp drill will take a very thick chip.

                Often its possible to find a solid point in the main structure to support the pressure screw. If this isn't possible there is normally there is some sort of upright in the kit which can be fixed to the work surface by clamps or drilled holes with a cantilever arm carrying the pressure screw.

                Yours is a pretty modern example being arranged to take morse taper drills rather than square drive end variety used with earlier types. Looks as if it has the pressure screw built into the device too. Which is often more convenient than having it on the arm or jack.

                The Cole drill and other similar devices are a lighter duty version working on similar principles.

                If you anticipate putting holes over a 1/2" or so into metal structures too big to get under the shop drill it may be worth having about the place.

                Clive.

                PS.  Bob, thats a superb link you found about these devices.  Well done.

                 

                Edited By Clive Foster on 25/04/2015 11:14:50

                Edited By Clive Foster on 25/04/2015 11:15:44

                #187702
                Rainbows
                Participant
                  @rainbows

                  So am I right to say the only thing missing is a sort of half arch which I attach to the workpiece and then butt the pointy but at the top against the other end of the arch?

                  Got a few days to go, might buy it might not.

                  #187703
                  Jesse Hancock 1
                  Participant
                    @jessehancock1

                    Yeah thank god for mag drills and generators.

                    Good clean example though.

                    #187707
                    WorkshopPete
                    Participant
                      @workshoppete

                      Hi All

                      I remember when serving my time one of the engineers who was ex navy apprentice and went all through the war – torpedoed twice in the Atlantic – telling he was in a shipyard in the USA the ship had suffered deck damage and being the age it was had all the plates riveted. He and several others were set to with ratchet drills to drill the hundreds of holes needed in this armoured plate meanwhile the Americans were bringing on board various mag based drills which all failed to drill a single holes while Charlie and his mates were very slowly plodding on. Old technology!

                      Peter

                      #187716
                      Clive Foster
                      Participant
                        @clivefoster55965

                        Peter

                        No surprise that early mag based drills couldn't cope with armour plate or similar. Low speed & high pressure being the generally accepted way to cope with that sort of 'orrid stuff. Your basic mag drill of that era would have run too fast as well as being too weak in the magnet to hold against the required pressure. It took a fair few years for carbide technology to evolve to the point where anything approaching normal drilling methods could be made to work.

                        A good example of how effective pressure at low speeds can be is the oft cited party piece for a Cole drill is to push a hole straight through a bearing race, tool steel or similar hard material without great effort using a good quality masonry drill. Has to be very slow, probably 30 rpm or so equivalent.

                        Clive.

                        #187725
                        norman valentine
                        Participant
                          @normanvalentine78682

                          It can also be used in a confined space where you can't get a full swing with a normal brace.

                          #187748
                          Clive Hartland
                          Participant
                            @clivehartland94829

                            The arm that is attached to the vertical pillar is machined with a myriad of Vee cavities to take the pointed end. This so you could match any angle or position. Very slow and deliberate and I did an apprentice course where they thew one of those at me to drill a hole in a sheet of plate. Luckily i knew what to do and sailed through it.

                            Clive

                            #187751
                            Harry Wilkes
                            Participant
                              @harrywilkes58467

                              Takes me back to the 'dark days' when I earned a tanner an hour (2.5p) …………………………….

                              H

                              #187771
                              IanT
                              Participant
                                @iant

                                My starting pay in HM Armed forces was 10 shillings a week (50p) Harry – but it was "all found"

                                So you got paid on Thursday (hold out left hand, receive cash and paybook, shout "Pay & Paybook correct Sir!", step smartly back and salute) – went out that night and were broke come Friday morning but at least you had your food and bed for the week!

                                Happy Days laugh

                                IanT

                                #187883
                                paul 1950
                                Participant
                                  @paul1950

                                  here is one showing the jack screw

                                  img_0700.jpg

                                  #187888
                                  JasonB
                                  Moderator
                                    @jasonb

                                    Pic of one being used in a "home workshop" even though teh guy has a very extensive workshop you would be hard pushed to do this by other means.

                                    Carl Byrne's Fowler final drive being drilled for diff pinions scale 12"/Ft

                                    #187892
                                    paul 1950
                                    Participant
                                      @paul1950

                                      impressive maybe I should remove it from eBay

                                      #187901
                                      Dave Bond 1
                                      Participant
                                        @davebond1

                                        Looks to be quite efficient. The time stamps on the photos show drilling one hole only took 8 days

                                        ***tongue in cheek***

                                        #187909
                                        Rainbows
                                        Participant
                                          @rainbows

                                          Postage is a bit of a killer for me and Ive seen something else that might deserve my money better. I don't think there is a rule against it so here is a link if any of you want to try it.

                                          #187918
                                          paul 1950
                                          Participant
                                            @paul1950

                                            £1.35 of the postage will go to eBay so he is not asking over the top

                                            #188350
                                            HughE
                                            Participant
                                              @hughe

                                              I think there was an article to make a smaller version for restoring a main frame of an engine. Can't rember if it was MEW or ME.

                                              #188391
                                              Ian S C
                                              Participant
                                                @iansc

                                                ME Ian S C

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